CA2377697A1 - Expandable joint connector - Google Patents

Expandable joint connector Download PDF

Info

Publication number
CA2377697A1
CA2377697A1 CA002377697A CA2377697A CA2377697A1 CA 2377697 A1 CA2377697 A1 CA 2377697A1 CA 002377697 A CA002377697 A CA 002377697A CA 2377697 A CA2377697 A CA 2377697A CA 2377697 A1 CA2377697 A1 CA 2377697A1
Authority
CA
Canada
Prior art keywords
seal
annular
box
pin
ring
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CA002377697A
Other languages
French (fr)
Other versions
CA2377697C (en
Inventor
M. Edward Evans
D. Scott Costa
James N. Brock
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Enventure Global Technology Inc
Original Assignee
Enventure Global Technology, Llc
M. Edward Evans
D. Scott Costa
James N. Brock
Grant Prideco, Inc.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=23386617&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=CA2377697(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Enventure Global Technology, Llc, M. Edward Evans, D. Scott Costa, James N. Brock, Grant Prideco, Inc. filed Critical Enventure Global Technology, Llc
Publication of CA2377697A1 publication Critical patent/CA2377697A1/en
Application granted granted Critical
Publication of CA2377697C publication Critical patent/CA2377697C/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L15/00—Screw-threaded joints; Forms of screw-threads for such joints
    • F16L15/001—Screw-threaded joints; Forms of screw-threads for such joints with conical threads
    • F16L15/003—Screw-threaded joints; Forms of screw-threads for such joints with conical threads with sealing rings
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH DRILLING; MINING
    • E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
    • E21B17/02—Couplings; joints
    • E21B17/04—Couplings; joints between rod or the like and bit or between rod and rod or the like
    • E21B17/042—Threaded
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH DRILLING; MINING
    • E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
    • E21B17/02—Couplings; joints
    • E21B17/08—Casing joints
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH DRILLING; MINING
    • E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B23/00—Apparatus for displacing, setting, locking, releasing, or removing tools, packers or the like in the boreholes or wells
    • E21B23/08—Introducing or running tools by fluid pressure, e.g. through-the-flow-line tool systems
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH DRILLING; MINING
    • E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
    • E21B43/02—Subsoil filtering
    • E21B43/10—Setting of casings, screens, liners or the like in wells
    • E21B43/103—Setting of casings, screens, liners or the like in wells of expandable casings, screens, liners, or the like
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH DRILLING; MINING
    • E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
    • E21B43/02—Subsoil filtering
    • E21B43/10—Setting of casings, screens, liners or the like in wells
    • E21B43/103—Setting of casings, screens, liners or the like in wells of expandable casings, screens, liners, or the like
    • E21B43/106—Couplings or joints therefor
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L13/00—Non-disconnectible pipe-joints, e.g. soldered, adhesive or caulked joints
    • F16L13/14—Non-disconnectible pipe-joints, e.g. soldered, adhesive or caulked joints made by plastically deforming the material of the pipe, e.g. by flanging, rolling
    • F16L13/16—Non-disconnectible pipe-joints, e.g. soldered, adhesive or caulked joints made by plastically deforming the material of the pipe, e.g. by flanging, rolling the pipe joint consisting of overlapping extremities having mutually co-operating collars
    • F16L13/168—Non-disconnectible pipe-joints, e.g. soldered, adhesive or caulked joints made by plastically deforming the material of the pipe, e.g. by flanging, rolling the pipe joint consisting of overlapping extremities having mutually co-operating collars for screw threaded pipes
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49826—Assembling or joining
    • Y10T29/49908—Joining by deforming
    • Y10T29/49938—Radially expanding part in cavity, aperture, or hollow body
    • Y10T29/4994—Radially expanding internal tube

Abstract

Methods and apparatus are provided for obtaining a secure mechanical connection and a pressure-tight seal in the overlapping area of two telescoping tubular bodies (26 and 27). The two bodies, including the overlapping area, are radially expanded to increase the inside diameter of t he bodies. The expansion forces an annular seal (28) in the overlapping area in to a pressure-sealing engagement between the bodies. A string of pipe assembled from joints secured to each other by telescoping, threadedly engaged expande d pin (26) and box (27) connections may be radially expanded into a surroundin g well bore to provide a cased well having an internal diameter greater than t he original internal diameter of the pipe string. The annular seal in the connection comprises an annular elastomeric seal ring (29) and an annular Teflon spacer ring (30). Radial expansion of the connection causes axial contraction of the groove (31), which acts with the spacer ring to expand th e seal ring radially to seal the annular space created between the expanded pi n (26) and box (27).

Claims (37)

1. A method for sealing the connection between adjoining tubular bodies comprising the steps of:
placing the axial end of a first tubular body within the axial end opening of a second tubular body whereby an annular area is defined between said bodies;
disposing a sealing component in said annular area between said first and second tubular bodies; and radially expanding said first and said second tubular bodies to compress said sealing component between said first and second tubulars to seal the annular area between said first and second tubulars.
2. The method as defined in Claim 1 wherein said sealing component comprises an elastomeric seal ring and a separate spacer ring.
3. The method as defined in Claim 2 wherein said seal ring is comprised of a fluorocarbon compound and said spacer ring is comprised of a Teflon-containing compound.
4. A method for forming a seal between telescopically engaged, tubular bodies comprising the steps of:
disposing a seal component in the overlapping annular area between first and second telescopically engaged tubulars; and radially expanding said first and said second tubular bodies to compress said seal component for forming a seal between said first and second tubulars in said overlapping annular area.
5. The method as defined in Claim 4 wherein said seal component comprises an elastomeric seal ring and a separate spacer ring.
6. The method as defined in Claim 4 wherein said seal component is carried in an annular groove formed in one of said bodies in said overlapping area.
7. The method as defined in Claim 5 wherein said seal ring is comprised of a fluorocarbon compound and said spacer ring is comprised of a Teflon-containing compound.
8. The method as defined in Claim 6 wherein the squeeze of said seal ring before expansion of said tubular bodies is greater than 15%.
9. A method for sealing telescopically engaged tubular bodies comprising the steps of:
inserting the axial end of a first tubular body into the axial end opening of a second, larger diameter tubular body whereby said second body overlaps said first body in an axially extending annular area adjacent the axial ends of said first and second bodies;
disposing a deformable sealing component in the annular area between said first and second tubular bodies;
radially expanding said first and said second tubular bodies; and compressing said sealing component during said expanding step for forming a seal between said first and said second tubular bodies in said annular area.
10. The method as defined in Claim 9 wherein said sealing component comprises an elastomeric seal ring and a separate spacer ring.
11. The method as defined in Claim 10 wherein said seal component is carried in an annular groove formed in one of said bodies in said overlapping area.
12. The method as defined in Claim 11 wherein the squeeze of said seal ring before expansion of said tubular bodies is greater than 15%.
13. A method of sealing the engaged threaded connection between a threaded tubular pin member and a threaded tubular box member comprising the steps of:
disposing a sealing component in the annular area defined between said pin member and said box member; and radially expanding said pin member and said box member to compress said sealing component to form a seal in the annular area whereby fluids are prevented from moving axially across said annular area.
14. The method as defined in Claim 13 wherein said sealing component comprises an elastomeric seal ring and a separate spacer ring.
15. The method as defined in Claim 14 wherein said seal component is carried in an annular groove foamed in one of said members in said annular area.
16. The method as defined in Claim 15 wherein the squeeze of said seal ring before expansion of said tubular bodies is greater than 15%.
17. The method as defined in Claim 16 wherein said seal ring is comprised of a fluorocarbon compound and said spacer ring is comprised of a Teflon-containing compound.
18. A radially expanded, sealed connection between a threaded pipe pin and a threaded pipe box made by the process of:
threadably engaging a threaded pin into a threaded box to form an annular engaged area between said pin and said box;
disposing an annular sealing component in the annular engaged area between said pin and said box; and radially expanding said pin and said box in said engaged area to compress said sealing component in said engaged area for forming a seal preventing axial fluid travel across said engaged area.
19. The method as defined in Claim 18 wherein said sealing component comprises an elastomeric seal ring and a separate spacer ring.
20. The method as defined in Claim 19 wherein said seal component is carried in an annular groove in said pin or said box.
21. The method as defined in Claim 20 wherein the squeeze of said seal ring before expansion of said pin and said box is greater than 15%.
22. A seal for a threaded connector comprising:
an internally threaded tubular box connector for receiving an externally threaded pin connector;
an annular groove formed in the internal surface of said box connector;
an annular, elastomeric seal element carried in said groove for engaging and sealing against said pin connector when said pin connector is received within said box connector; and an annular spacer ring carried in said groove whereby said spacer ring engages said seal element to retain said seal element in said groove when said pin is received in said box.
23. The seal as defined in Claim 22 wherein the squeeze of said seal element is greater than 15%.
24. The seal as defined in Claim 23 wherein said seal element comprises a fluorocarbon compound and said spacer ring is comprised of a Teflon-containing compound.
25. The seal as defined in Claim 23 wherein said groove is formed in said box and said seal element is disposed between said spacer ring and the face of said box, whereby the nose of said pin engages said seal element before engaging said spacer ring when said pin is threadably received in said box.
26. A seal for a threaded connector comprising:
an externally threaded pin connector for engagement within an internally threaded box connector;
an annular groove formed on the external surface of said pin connector;

an annular, elastomeric seal element carried in said groove for engaging and sealing against said box connector when said pin connector is engaged within said box connector; and an annular spacer ring carried in said groove whereby said spacer ring engages said seal element to retain said seal element in said groove when said pin is engaged in said box.
27. The seal as defined in Claim 26 wherein the squeeze of said seal element is greater than 15%.
28. The seal as defined in Claim 27 wherein said seal element is comprised of a fluorocarbon compound and said spacer ring is comprised of a Teflon-containing compound.
29. A seal mechanism for a radially expandable connection assembly comprising:
a pin member;
a box member adapted to telescopically receive said pin member to form an overlapping annular area between said pin and box members;
an annular groove carried by one of said pin members or said box member within said overlapping area, said groove defining an annular volume within said overlapping area; and an annular, deformable seal component carried in said groove, said seal occupying less than all of said annular volume of said groove before expansion of said connection and occupying a greater percentage of said annular volume following radial expansion of said connection assembly to form a seal in said overlapping area.
30. The seal mechanism as defined in Claim 29 wherein said seal component comprises an annular seal ring and a separate annular spacer ring.
31. The seal mechanism as defined in Claim 30 wherein the squeeze of said seal ring before radial expansion of said connection assembly is greater than 15%.
32. The seal mechanism as defined in Claim 31 wherein said seal ring comprises a fluorocarbon compound and said spacer ring comprises a Teflon-containing compound.
33. A seal for a pin and box connection comprising:
an axially and radially extending, externally threaded pin;
an axially and radially extending, internally threaded box adapted to threadedly receive said pin to form an annular surface between an engaged outer surface of said pin and an engaged inner surface of said box;
an annular recess in said inner surface of said box; and an annular seal component carried in said recess, said seal component having a maximum average axial dimension at least 5% less than the maximum average axial dimension of said recess when said pin is received in said box.
34. The seal as defined in Claim 33 wherein said seal component comprises an annular seal ring and a separate annular spacer ring.
35. The seal as defined in Claim 34 wherein the squeeze of said seal ring in said recess is greater than 15% before said pin and box connection is radially expanded.
36. The seal as defined in Claim 35 wherein said seal ring is comprised of a fluorocarbon compound and said spacer ring is comprised of a Teflon-containing compound.
37. A method for forming a seal between a pin and box connection comprising the steps of:
disposing a seal component in an annular groove formed internally of a box;
engaging a pin connection into said box connection to form an overlapping annular area between the pin and box; said groove falling within said overlapping area and said seal component occupying less than 95% of the volume of said groove when said pin is fully engaged in said box; and expanding said pin and box radially in said overlapping area to urge said seal component into sealing engagement with said pin whereby said seal component occupies substantially 100% of said groove.
CA2377697A 1999-07-13 2000-07-11 Expandable joint connector Expired - Lifetime CA2377697C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US09/352,815 1999-07-13
US09/352,815 US6409175B1 (en) 1999-07-13 1999-07-13 Expandable joint connector
PCT/US2000/040341 WO2001004520A1 (en) 1999-07-13 2000-07-11 Expandable joint connector

Publications (2)

Publication Number Publication Date
CA2377697A1 true CA2377697A1 (en) 2001-01-18
CA2377697C CA2377697C (en) 2010-06-29

Family

ID=23386617

Family Applications (1)

Application Number Title Priority Date Filing Date
CA2377697A Expired - Lifetime CA2377697C (en) 1999-07-13 2000-07-11 Expandable joint connector

Country Status (12)

Country Link
US (1) US6409175B1 (en)
EP (1) EP1203177B1 (en)
JP (1) JP4688384B2 (en)
CN (1) CN100395474C (en)
AR (1) AR024714A1 (en)
AU (1) AU766926B2 (en)
CA (1) CA2377697C (en)
DE (1) DE60038451T2 (en)
ES (1) ES2304974T3 (en)
MX (1) MXPA02000496A (en)
NO (1) NO329167B1 (en)
WO (1) WO2001004520A1 (en)

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AU6953700A (en) 2001-01-30

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